RabReith89

Hay am a new owner ov a very good example White 1989 S2 Escort RS Turbo but a think am getin a but paranoyd.

My oil cap is coming off when am booting the car up can any one tell me why. Could it be that aye have no dump valve on??

Aye have bent the cap a bit so it slips on tight for time being.

clarke5700

o dear

clarke5700

blockeb breavers if not could be a sine of piston rings im afrayed

jacko

a good rs turbo on mfi will cut out when the cap is removed
so as above

orion_crazy_carl

iTrader: (3)

if u take the cap off and it dont stop and its chuffing from the cap then if ya breathers aint blocked,ya piston rings are worn

JamboRS

unless ur ventin to atmosphere/catch tank or running rich as fuk

RabReith89

But when a relized this happen the cap was off would aye ov not notice theres something wrong.

Could it be that aye need a new cap?? It did feel very lose comeing off and on??

orion_crazy_carl

iTrader: (3)

is it chuffing?
it aint the end of the world bud, its pretty common

©hatter Box

buy a new cap seal mite be damaged. if it still comes off you got to much crank case compression.

RabReith89

No theres no chuffin, Would the cuffin noise be loud??

It is a aftermarket alloy rocker cover and aye think a standerd cap (Yellow) if that would make a diffrance??

The engine seems to be runnin sweet when drivein what should aye look for guys??

GVK.

Make sure the pipe from the rocker cover down the back of the block, isn't... ummm blocked.

Also have a look at the breathers on the other side of the rocker cover.

RabReith89

Aye think it might be the oil cap gonna change it when aye give it a oil change tomorrow.

Dose all the rs turbo's oil caps just slip on???

rstdave

iTrader: (3)

If you haven't already got one buy an uprated breather, bailey or similar, fit that along with a new cap should solve your problems for now mate.

RabReith89

Do u mean fit a oil breather?? Cause a have nae got one on the engine plus nore a dump valve the last owner took them off cause where the dump valve was has now been blocked off so a dont think the engine is getting to breath??

coswurv

iTrader: (8)

Just hope he didnt remove the dump valve to cover up ring wear as if this is the case the dump valve would of been blowing out oil, run the car up and remove the oil cap if the revs drop and it goes to stall you should be ok also check your breather pipes for blockages, if not its more than likely rings.

RabReith89

Ok mate a will do that soon as cheers

RabReith89

Right just tryed it started the car then a pulled off the oil cap nothin happened no rev change ect there was a bit off air comin out.

When a give it a rev it started to drop down to 300-400 revs and it felt like it was gonna stall??

as355f1

i would defo say rebuild time

Karlos G

iTrader: (4)

Probably just blocked breather pipes then mate, take them all off and clean them right out.
It should stall when you remove the oil filler cap unless the breather return to the metering head has been blocked off.

Karlos G

iTrader: (4)

Thats a bit of a leap mate!
There is only 2 reasons that the engine doesnt stall when the Oil filler cap is removed, either the breathers are clogged up, or the return to metering head is blocked off, doesnt indicate anything about engine condition at all!
If the engine stalls when the caps removed and it's blowing it off under load then I would say piston rings and a rebuild is needed.

RabReith89

Thanks mate a will defo do all that. Besides all this the engine seems to be fine. Hope this is not a big problem or harmin the engine

Karlos G

iTrader: (4)

If it is just blocked breathers then no harm will be done mate, so long as it doesnt do it when all your breathers are clear you'll be fine.

as355f1

by the time i had read the thread and replied i missed his last reply, if he has tried it and it nearly stalled then yes i would agree possibly blocked breather, to be fair it would be my first port of call as its the cheapest option !

RabReith89

Ok a will defo get on 2 cleanin out these breathers if that dose nae work wots the next step guys??

B1G_RST

iTrader: (1)

drill a hole on the side of you oil cap and put a self tapper through it,, problem solved ha

Karlos G

iTrader: (4)

PMSL

rst in breaking

iTrader: (2)

sorry if this has been mentioned as i havnt read the whole thread, try a compression test to see if its piston rings, if low place say a tea spoon of oil down each cylinder and test it again, if rings then should see a large increase in compression, hope this helps

RabReith89

Which hose's are the breather one's

Karlos G

iTrader: (4)

The 2 that come from the rocker cover (one at each end), one goes direct to the block and the other to a little filter and splits off to the metering unit and the inlet manifold.

brizie

gets my vote

RabReith89

Cheers mate whats the best thing for cleanin them??

JamboRS

for all the years ive heard check the breathers for blockages,ive never seen a blocked breather,if this car is just bought(or brought as u's like to call it) and has the dump valve removed chances are its been removed to hide oil blowin out the dump valve and stainin the bonnet,if u can check the intercooler and intercooler hoses to see if theres excess oil.to be honest mate id stop drivin g it till u get it sorted,right now worse case scenario ull need new rings,maybe a hone on the bores,keep drivin and ur riskin det and cracked pistons

RabReith89

Well just my luck after giving it a service oil motorsport 1 15w 50 ,oil filter, sump kit, spark plugs.

Was just two feet from my house after giving it a run for a hour or so, booted her up then pop revs drop smoke pissin out the exhaust and out the bonnet,

Opened the bonnet to see that the seal on the turbo was smokein two??
Drove it down the street tryed bootin it no turbo kickin in so looks like a need a new turbo, How much will a new one cost??

stevedb

I paid £519.00 + vat (about £620 odd) exchange for a Ford Escort RS Turbo Stage 2 turbo from Turbo technics.

RSTurboSI

iTrader: (1)

heres a test for you,

to find your problems are so,

Needs a rebuild, due to pistion wear or pistion crack, ring's.
- Remove the boost hose from your turbo to ur MFI fuelings, check no play in your turbo, then replace all, thats to just check if your turbo is all ok. next start up the car and leave it running till the temp is up a little then take your car out, give it a boost and when you let go of boost check if a hudge cloud of black smoke is coming out, that will tell you if your rings are fucked,

here is another to check if rings worn or broken, could even be pistion ring turn.
when the rings are fucked, or turned as of pressure, you will get alot of oil spilling out of your oil points, shuch as near your gearbox mounting under the engine as the oil just poors out,

the most simple check for pistions is a Compresstion test which you can buy from any supplys such as halfords and ebay, they should read around 8, in the green of the compresstion tester, they all should read near or very close to the same as all cylinders, which will tell you if you have damaged any of the rings or pistions.

If your useing a chrome rocker cover then thats one problem, also if there is no ford stamp on the oil cap that means its a yellow bit of shit from your local halfords and the rubber that keeps the oil cap on is not doing its job because there cheap, ford supply them and there around 22-30£ also the problem with the chrome rocker cover is they do take a little while to heat then the normal standard rocker cover for an RST. you wanna get some wet and dry and remove as much chrome on the rocker cover where the oil cap sits as then it will have more chance to grip when on boost, if your pisition rings or pistions are pressureing due to broken internalls then you it would pop off even if its griped, warm (oil cap)

breathers on the RST get cloged due to crap oil used and not an often enuff oil change, remove all your breathers and make sure they are clean and oil free, advised to use something like a bukket or a hoes, blow throw them as oil will feed better than air, Ox.

its commen that the oil breathers colg and also the cap pops off, one thing not todo, as the engines are under alot of pressure being a turbo than a normal N/a car they need to beabe to release some pressure from that and mainly just pop the oil cap off if as said breathers are cloged so dont buy a chrome fixed one as it can brake parts..

RabReith89

Cheers for all the info mate gonna get on it today.

Just wish the last owner took better car of the car

RSTurboSI

iTrader: (1)

thats not very good advice, really, its not.

there is a reasson to why the cap pops off, it shouldnt unless under alot of pressure, if the oil pip is cloged it will pop it off as all the pressure is going up from the pistion movement. if you was to drill a hole and fix the oil cap down, and you have cloged oil feeds and pipes you will crack a pistion, or on hard boost and hard driving you could send the rods to cloud nine and total your engine, and even crack your turbo fans that will then suck itsself into the engine and fuck your vauvles and stem seals.

then its time for a rebuild or a new engine deppends on damage, its the most stupidest thing you can do to an RST engine.

they are fast on boost because of the pressure the engine is under, and the turbo spin from a T3 turbo.

if you follow silly comments you'll end up with a nice 2half k maybe more bill for a new repalcemnt engine, just like i did as the stupid owner of mine before i got my hands onit had the screw in oil cap.

any more problems just ask...

there is a book on RST engines which i have and i can scan anything needed in, which it states in black n white to not fix the oil cap down and it gives you the reassons, to why you shouldnt.

GUZZLER

iTrader: (3)

find a mechanic with some sence, get him to do a leakage & compression test, leakage normally tells a lot more than compression


also £450 for a bearings & seals rebuild you can get an exchange turbo for under £400..

RSTurboSI

iTrader: (1)

there was a brand new one box'ed with blue cover over the turbo fan hole with mainfold for £350

i know you can get them rebuilt around 200ish from turbo tech here in nottinghamshire.

JamboRS

what seal on the turbo
dnt rule out ring/ring land failure